Arch-clamp.



flNmaaAQv.' -PATBNTBD OCT. 29. 1907.

M. LARKINS.

ARCH CLAMP.

nLIoATIpN Hmm MAY 22. .1907.

UNITED sTATEs PATENT oEEIoE.

MICHAL LARKINS, OF SOUTH BETHLEHEM, PENNSYLVANIA.

ARCH-CLAMP.

Specification of Letters Patent.

Patented oct. 29, 1907.

Application led Mav 22| 1907. Serial No. `375.137-

v-To all 'whom it may concern:

Be it' known that l, MTCHAEL LAnrrrNs, acitizen of the United States', residing at 'So/utah Bethlehem, in the county oi Northampton and ,State `oi`,`Pennsylvania, have invented certain new and useful Improvements' in Arch-Clamps, of which the following-,is a specifi' cation.v i

This invention 'is a clamp for securing the bricks f urnace-archea'and it has for `its objecten improved device of this kind embodying simplicity oi construction, and also one which can be readily adjusted and applied to arches of different lengths.

In' the accompanying drawing, Figure 1 is an elevation Aofthe invention showing the application thereof.

l5 Fig. 2 is a'lor'igitudinal section. Fig. '3 isla plan View.

Referring specifically to the drawing, 5 denotes an arched beam having at one end a depending. flange In use, theclanip is inverted andthe bricks 17 of' the arch are placed on the beam .with the flanges '6 and l2, engaging the respective end bricks of the arch. The adjustablend piece is then drawn up by the lclamping screw and nut until the bricks are tightly clamped between the flanges. The arch can then be readily put in place. rlyhe 'tongues 9 and 13 prevent side play of the Vadjustable end piece, and also guide its movement so that the flange 12 will come squarely against the brick at that lendoithe arch. The end.

piece also adapts the clamp to arches of various spans, and its proportions and curvature will be varied to suit the design of the arch.

l claim:

1. A clamp for arches-comprising a beam having at one end a depending flange, and adjacent the opposite end' anl upstanding flange, an adjustable end piece on the latter end of the bearn comprising a plate having upstauding and 6. Near the other end of. the beam is an upstanding depending flanges, the latter Harige havlngva slot to receive flange 7, andsaid end also; carries an' adjustable end" 20A piece, comprising'a plate 8 fitting on top oi thatportion of the beam which projects beyond the flange 7.' vThis plate is curved to confrm to the curvature of `the beam 5 and it lits snugly thereon. The plate 8 is reducedv at its linner end to vform a tongue 9 which 25 passes through a slot 10 in the'flange7, and at its other` end the plate has upwardly and downwardly presented lilanges 11 and 12 respectively. The end of the beam 5 is also reduced to form a tongue 13 which lpasses through a lslot 14 in the flange 12. The flanges 7 and 30 l1 have alined openings to receive a-clamping screw 15 fitted with a nut 16 which bears on the outer side ofthe flange .11. i f

the end of the beam, and a clamping-screw passing through the upstanding flanges.

2. A ciampkfor arches comprising a beam having at one end a depending nnge, and adjacent the opposite end a i slotted upstanding flange, an adjustable end piece on the MICHAEL LARKINS.

Witnesses:

.JAMES BURNS.,

JACOB LANNING. 

